| ⇢ | A | Checkpoint::remove() added | |
| ⇢ | A | Checkpoint::getAllCheckpointIds() added | |
| ⇢ | A | Checkpoint::assertCheckpointExists() added | |
| ⇢ | A | Checkpoint::checkpointExists() added | |
| ⇢ | A | Checkpoint::createCheckpointId() added | |
| ⇢ | A | Checkpoint::getCheckpointPath() added | |
| B | ↘ | C | CheckpointCommand::execute() got worse |
| A | ↛ | Checkpoint::getCheckpointName() removed |